84979967834 has 32 divisors (see below), whose sum is σ = 137137950720. Its totient is φ = 39367256688.

The previous prime is 84979967833. The next prime is 84979967867. The reversal of 84979967834 is 43876997948.

It is not an unprimeable number, because it can be changed into a prime (84979967833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424059 + ... + 2458865.

It is an arithmetic number, because the mean of its divisors is an integer number (4285560960).

Almost surely, 2^84979967834 is an apocalyptic number.

84979967834 is a deficient number, since it is larger than the sum of its proper divisors (52157982886).

84979967834 is a wasteful number, since it uses less digits than its factorization.

84979967834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36242.

The product of its digits is 658409472, while the sum is 74.

The spelling of 84979967834 in words is "eighty-four billion, nine hundred seventy-nine million, nine hundred sixty-seven thousand, eight hundred thirty-four".